1,3-diacetyl acetone
2,5-dimethylpyrazolo[1,5-c]pyrimidin-7(6H)-one
6-benzyl-3-chloro-2-methyl-5-propionyl-6H-pyrazolo[1,5-c]pyrimidin-7-one
6-benzyl-3-chloro-5-((RS)-1-hydroxy-propyl)-2-methyl-6H-pyrazolo[1,5-c]pyrimidin-7-one
6-benzyl-2,5-dimethyl-6H-pyrazolo[1,5-c]pyrimidin-7-one